Which evolved during the paleozoic era?
a. earth’s first land plants
b. the first humans
c. bacteria that could produce oxygen
d. saber-toothed cats

7. how did the early egyptians use the flooding of the nile river to their advantage? they diverted the water to flood their enemy's lands and destroy their crops. they created an easier way to travel to the mediterranean sea and the indian ocean. they established a new water-based athletic event for the ancient olympics in greece. they devised an innovative irrigation system, which created a surplus of food.

What was the compromise that allowed california to be admitted to the union

In 1869, jay gould and james fisk’s actions caused a scandal in new york city. blank, the secretary of the treasury, informed the president about this scandal.